At first, it have a bit different with my project and not related about it.
Because this modeling are designed by Jazz's gun(and for my killing time.), but my project was remodeled for substantial operation.
In other word, I've redesign it for project such as front&rear sight, magazine catch, etc.. Why?

from Firearms perspective, there is some errors on it. for example,

1.Foresight is too low to aim.
2.There is no magazine.(←I'd like to more think about it. because LFG-2000 will operated by batteries instead magazine&ammo. well, just my opinion.)
3.Rear sight is not exist.
4.No flash hider or muzzle break.←well actually, this is optional part.

Even if it doesn't matter that without the magazine and muzzle brake, but without sights, it is true that a gun is virtually meaningless.

So, I've add the rear sight on the top, changed the position of the top of foresight. also, Fore grip is replaced to magazine follower.

As a result, designs were changed like this.

Comparing with the two guns, you can see they are slightly different.

P.S. Anyway, this project's progress is very slow.. Maybe it'll be completed on summer vacation..(I'm very sorry about that just be wait..)